The companies that negotiated with the government include Google, which owns YouTube; Microsoft, which owns Hotmail and Skype; Yahoo; Facebook; AOL; Apple; and Paltalk, according to one of the people briefed on the discussions. The companies were legally required to share the data under the Foreign Intelligence Surveillance Act. People briefed on the discussions spoke on the condition of anonymity because they are prohibited by law from discussing the content of FISA requests or even acknowledging their existence.

In at least two cases, at Google and Facebook, one of the plans discussed was to build separate, secure portals, like a digital version of the secure physical rooms that have long existed for classified information, in some instances on company servers. Through these online rooms, the government would request data, companies would deposit it and the government would retrieve it, people...

Companies have been tracking you and your behavior, long before the government got into the business, or at least for the same amount of time, and probably have even less qualms about using the data they get. Here's an article written back in 2011, and probably still has a lot of good information in it. How to keep your privacy online. Note: Americans should be aware that British newspapers can have articles in poor taste, not this one, but some in the sidebars, so wondering around this website, you could be rudely surprised.